Stinger weight reduction thread

[CaliSting]

I didn’t see weight reduction post for Stinger yet. One of biggest performance boosters will be weight reduction. Some of these lightweight parts exist some do not. Would be interesting to know if our brakes are shared with another car that might allow for existing aluminum brake hat upgrade. I think 200 lbs could come off the Stinger easily without making a real impact to overall quality of the car.

Lightwieght 18 inch wheels 30-50lbs
Aluminum hat brake rotors 25-30 lbs
Lithium battery 30-40lbs
Dry carbonfiber hood 15-25 lbs
Lightweight exhaust system 20 to 40 lbs

 

[xot1]

Nice thread idea!

Replace the front security bar (don't know the exact term) with the G70 one which is in alluminum. No idea about the weight saving though, perhaps 10lbs?

 

[CaliSting]

Nice thread idea!

Replace the front security bar (don't know the exact term) with the G70 one which is in alluminum. No idea about the weight saving though.

Bumper bar? Is ours steel? I hate to mess around with safety of the car but if g70 bar fits and pulls decent amount of weight off its worth considering.

 

[RVance]

I'm going to try to lose 25 lbs.

 

[CaliSting]

There are lots of things that could be done to pull weight out of the car but most would ruin daily driver aspects of the Stinger. If one were to go crazy I’m pretty sure I could get RWD car down to about 3300 lbs.

Remove following in addition to my first post

Remove all rear interior
Replace steering wheel with race wheel
Replace front seats with lightweight race seats
Put CF doors in the car
Rear CF hatch with Lexan window
Lightweight aluminum body coilovers
Pull all engine dressing off
Shorty intakes
Remove cats
Make some CF front fenders
Make CF rear quarter panels
Pull both front and rear bumper bars

 

[Never thought]

FYI - I went to 19 inch rotary forged wheels. Shaved off 10lbs from each wheel. They also weren’t the lightest rotary forged wheel. Pretty sure with some offerings you could shave another 3-5 lbs off per wheel.

 

[xot1]

FYI - I went to 19 inch rotary forged wheels. Shaved off 10lbs from each wheel. They also weren’t the lightest rotary forged wheel. Pretty sure with some offerings you could shave another 3-5 lbs off per wheel.

Do you feel the difference when accelerating?

 

[Never thought]

Do you feel the difference when accelerating?

Honestly, no. I’ve never had a car as fast as the Stinger. So it just feels brutally fast all the time lol. Breaking does feel a bit quicker.

 

[Rob M]

I gained 1/10 of a second by simply removing the owner's manuals

 

[Ucinn]

I gained 1/10 of a second by simply removing the owner's manuals

Fax...lol

 

[xot1]

Do you guys have an idea about the added weight of a wider tyre? Stock wheels are about 32lbs and I am considering swapping them with 20lbs rotary forged wheels but I am going a bit wider to fill the fenders, so the tyres would be a bit heavier.
So the two configurations are:
a) stock: 32lbs wheels with 225-40-19 / 255-35-19 tyres
b) aftermarket: 20lbs wheels with 245-40-19 / 275-35-19 tyres
Do you think the weight reduction will be canceled by the heavier tyres or is the tyre weight minimal? I am worried that the car becomes a little bit sluggish at acceleration.

 

[WildBill]

I think you will appreciate the grip offered by wider tires regardless of the weight. It is not a simple 1 to 1 relationship. There are other factors that need to be considered. That and I think if you go with lighter wheels the wider tires will be a wash. Do it!

 

[djerickd]

The weight of the spare w/ Jack and tools is about 40lbs. Bye Felicia.

 

[luter200]

From all the practical areas of weight reduction in summary:

1. Trunk: spare tire + lighter battery upgrade ~40lbs
2. Brake system: Rotars ~25lbs
3. Lighter Wheels + tires ~40lbs
4. Carbon fiber hood ~20lbs
5. Catback Exhaust and/or downpipes ~70lbs
6. Lighter Intercooler (maybe agency) ~10lbs
7. Ingen Intakes ~5lbs

Estimated total weight loss: ~210lbs

If we plug these practical area estimates in with the following parameters we get the following quarter mile time differences:

Stock GT2
Weight: 3810lbs
Horsepower: 365hp
Estimated 1/4 Mile Time: 13.3

Weight Reduced Stock GT2
Weight: 3600lbs
Horsepower: 365hp
Estimated 1/4 Mile Time: 13.1

Obviously you will see more than a .2s gain when you swap out intakes, exhaust, and tires. But what I'm saying here is by simply reducing your weight 210lbs you can trim off another .2s of your quarter mile times. This is practical areas only (if you daily your Stinger). Even more weight and time can be trimmed off when you start taking out seats and stuff.

 

[BlueByYouGT]

From all the practical areas of weight reduction in summary:

1. Trunk: spare tire + lighter battery upgrade ~40lbs
2. Brake system: Rotars ~25lbs
3. Lighter Wheels + tires ~40lbs
4. Carbon fiber hood ~20lbs
5. Catback Exhaust and/or downpipes ~70lbs
6. Lighter Intercooler (maybe agency) ~10lbs
7. Ingen Intakes ~5lbs

Estimated total weight loss: ~210lbs

If we plug these practical area estimates in with the following parameters we get the following quarter mile time differences:

Stock GT2
Weight: 3810lbs
Horsepower: 365hp
Estimated 1/4 Mile Time: 13.3

Weight Reduced Stock GT2
Weight: 3600lbs
Horsepower: 365hp
Estimated 1/4 Mile Time: 13.1

Obviously you will see more than a .2s gain when you swap out intakes, exhaust, and tires. But what I'm saying here is by simply reducing your weight 210lbs you can trim off another .2s of your quarter mile times. This is practical areas only (if you daily your Stinger). Even more weight and time can be trimmed off when you start taking out seats and stuff.

The AWD GT2, according to Kia, weighs 4,023 lbs.
RWD GT would be the lightest 3.3tt choice at 3,829 lbs.

 

[RVance]

Honestly, no. I’ve never had a car as fast as the Stinger. So it just feels brutally fast all the time lol. Breaking does feel a bit quicker.

Reducing unsprung weight will increase acceleration. But hard to feel by the seat of the pants.

 

[G-280123]

I'm going for wheels and rotors next

 

[Aarvix]

I can cut another 40lb by getting my fat ass on the treadmill.

 

[Blingen]

I can cut another 40lb by getting my fat ass on the treadmill.

Same here!

 

[djerickd]

Just cut the carbs y'all